The Windows Phone 7 application, content, and certification policies have been updated to provide greater clarity on the requirements for games, use of the Microsoft location service API, and a variety of application certification requirements. Download the new requirements here, and be sure your app meets all the requirements before you submit it to Marketplace in early October.

Very important reference that will safe a lot of time and round tripping during the certification process… make sure your team read this.

Joel Reyes
Windows Phone 7